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Substring search fails logging "one returned NULL"
I have having a very puzzling problem with OpenLDAP 2.0.27 (gdbm).
Certain sub-initial searches on an attribute return 0 entries, however
when I search the entry directly the attribute clearly matches the
criteria. The log always reports "idl_fetch: one returned NULL". This
package was compiled from RedHat's SRPM on stock 7.3.
This is a locally-defined attribute that contains data regarding
transactions I need accomplished, with fields separated by colons. My
client software does a search for entries which match the clients
particular configuration. The search that consistently fails is
(serverAction=execulink:web:*). Other clients searching for similar
patterns succeed. There is only one maintenance script that creates all
serverAction entries, so there is nothing different there.
Here is the attribute definition:
attributeType ( ... oid ... )
SYNTAX 188.8.131.52.4.1.14184.108.40.206.15 )
My slapd.conf is set to create eq,pres,subinitial indexes on this
attribute. I have increased my loglevel and found that the idl_fetch
error comes after ldbm_cache_open ( serverAction.gdbm ). I have tried
deleting serverAction.gdbm and running slapindex, however it only
seg-faults. I'm avoiding dumping to LDIF and using slapadd, since this
usually causes huge problems days later. ie. slapd hanging, dying, lots
of nasty stuff. I only have a 33-50% long-term success rate with
slapadd, even across versions and platforms).
On a related question: What is the maximum length in characters/bytes of
a subinitial index? Is there a way to change it?
I'm really up the creek here and could use any suggestions,